# All Unit Conversion vs All Units Convertor

The clearest difference is in-app purchases: All Unit Conversion at none against All Units Convertor's 2. All Unit Conversion also leads on ads (none vs shown) and ratings volume (17 vs 1). All Units Convertor's advantage is rating (5.0 vs 4.6) and update cadence (fortnightly vs every 2 months). On price there is nothing between them.

Both are free to download. All Units Convertor sells 2 one-off in-app purchases. All Unit Conversion asks for nothing beyond the download.

All Units Convertor holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: All Unit Conversion has 17 ratings behind it against 1, so its average is the more settled of the two.

All Unit Conversion ships an update every 2 months, All Units Convertor fortnightly. The most recent releases landed on September 13, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | All Unit Conversion | All Units Convertor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (17 ratings)](https://appshunter.io/ios/app/all-unit-conversion/id1418597453/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/all-units-convertor/id1611287048/reviews)** |
| Number of ratings | **17** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 22 MB | 11 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tiago Do Couto](https://appshunter.io/developer/1291604717) | [恒卓 刘](https://appshunter.io/developer/509484187) |

## What reviewers say

### All Unit Conversion

[App page](https://appshunter.io/ios/app/all-unit-conversion/id1418597453)

Easily convert between various units of measurement with this free utility app. It supports conversions for length, area, volume, mass, time, digital storage, energy, and currency.

**Highlights:** Length conversion, Area conversion, Volume conversion, Mass conversion, Time conversion, Currency conversion

**Features:** macOS Compatibility

**In-app purchases:** none


### All Units Convertor

[App page](https://appshunter.io/ios/app/all-units-convertor/id1611287048)

Easily convert between various units of measurement, including currency, length, mass, and temperature. Features real-time currency exchange rates and a clean, intuitive interface for quick conversions.

**Highlights:** Supports 10 common unit types, Real-time currency exchange rates, Clear, at-a-glance conversions, iOS system UI compatibility, Converts currency, energy, length, temperature, mass, angle, time, area, bytes, force, volume, torque

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一杯可乐 | $0.99 | one-time |
| 一杯咖啡 | $1.99 | one-time |


## Frequently asked questions

### Is All Unit Conversion free?

All Unit Conversion is free to download, with no in-app purchases.

### Is All Units Convertor free?

All Units Convertor is free to download, with in-app purchases available.

### Which has better reviews, All Unit Conversion or All Units Convertor?

All Units Convertor is rated higher. All Unit Conversion averages 4.6 out of 5 from 17 ratings, while All Units Convertor averages 5.0 from 1 ratings.

### Do All Unit Conversion or All Units Convertor have ads?

All Units Convertor shows ads; All Unit Conversion does not.

### Which is updated more often, All Unit Conversion or All Units Convertor?

All Unit Conversion ships an update every 2 months, and All Units Convertor fortnightly. Most recently, All Unit Conversion was updated on September 13, 2026 and All Units Convertor on September 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*